7207-012: Provides up to 1.2GB of data per cartridge and operates
in streaming mode. The 7207-012 has a sustained data transfer rate
of 300 Kbytes/sec and can read tapes written in QIC-24 format and can read
and write tapes in QIC-120, QIC-150, QIC-525, and QIC-1000 formats.

7207-011 offers four times greater reliability over the -001 by using
new design technology breakthroughs. Provides over two times improvement
in data transfer rate over the 7207-001. (180KB/s! Wow!)